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"I created the Wally Series of books to 
educate children through the wonders
of the ocean and to inspire children to protect it."

Troy Mayne

Oceanic Imagery

WALLY’S REEF GANG

COMING SOON

Real animals. Real photographs. Big adventures with Wally, Casey, Shelley and their reef friends. Discover a new children’s book series by Troy Mayne, sharing stories of friendship, courage, kindness and caring for our ocean.

Wally’s Reef Gang

Real Animals. Real Photographs. Big Adventures.

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Welcome to Wally’s Reef Gang—a children’s book series created by underwater photographer and author Troy Mayne using genuine photographs of real marine animals.

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Meet Wally, the big green Maori wrasse, and his turtle friends Shelley and Casey as they explore the Great Barrier Reef, meet its remarkable inhabitants and somehow find themselves in one adventure after another.

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Behind the humour and adventure, each story carries a message about friendship, courage, kindness, fairness, responsibility, conservation and caring for others and our ocean.

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Books in Print

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Sorry Wally

Sorry Wally introduces Shelley and Casey as they journey across the Great Barrier Reef, meeting Wally and other reef creatures while discovering important lessons about friendship, behaviour and consequences.

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Kind Wally

In Kind Wally, Wally and Casey race to help Shelley after she swallows a discarded plastic bag. The story combines adventure and humour with an important message about plastic pollution and the effect rubbish can have on marine animals.

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The New Wally’s Reef Gang Series

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A much bigger adventure is coming.

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The expanded 20-book Wally’s Reef Gang series brings Wally, Shelley, Casey and their reef friends together in stories filled with humour, trouble, friendship and heart.

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Every book is built around genuine underwater wildlife photography rather than illustrated animals.

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Real animals. Real photographs. Real ocean stories—with a little help from Wally’s imagination.

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Coming Soon

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Discover Wally’s Reef Gang

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The dedicated Wally’s Reef Gang website is the new home of the complete series. Discover the books, meet the reef gang, explore the real animals behind the stories, see behind-the-scenes photography and find educational material for families, teachers and schools.

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​Visit Wally’s Reef Gang

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Sorry Wally introduces Shelley and Casey as they journey across the Great Barrier Reef, meeting Wally and other reef creatures while discovering important lessons about friendship, behaviour and consequences.

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In Kind Wally, Wally and Casey race to help Shelley after she swallows a discarded plastic bag. The story combines adventure and humour with an important message about plastic pollution and the effect rubbish can have on marine animals.

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See some of the genuine underwater photographs used throughout Troy Mayne’s Wally stories and meet the real marine animals that inspired the characters.

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© Oceanic Imagery 2026

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